feat: Add user fluree to run the container as non-root

[tty47]

hello!

I've added the user fluree (10001) to run the container as non-root.

Tested and working:

... [async-dispatch-6] INFO  fluree.server.consensus.raft.core - Ledger group leader change: {:cause :become-leader, :server "/ip4/127.0.0.1/tcp/62071", :new-leader "/ip4/127.0.0.1/tcp/62071", :old-leader nil, :event :become-leader, :message "This server, /ip4/127.0.0.1/tcp/62071, received the majority of the votes to become leader. New term: 1, latest index: 0."}
Fluree HTTP API server running on port 8090

cheers! 🚀

[CLAassistant]

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